Ribbon transfer machine



Dec. 6, 1932. A. R. zAcHERT' 1,890,243

RIBBON TRANSFER MACHINE Filed April 22., 1950 N V i :gz 'I Q j v HIS lA TTORNY I rss ARTHUR R. `ZACI-IER', OF NEW YORK, N. Y., ASSIGNOR TO BEDFORD CORPORATION, OF BEDFORD, YVIRGINIA PATENT- oFFIcE .liaivrsraoNe ruBBoN TRANSFER MACHINE Application filed April 22,

io from the narrow ribbons used on typewriters to the Wide ribbons used on billing machines or cash registers.

A further object is to provide means whereby the roll may be quickly and accurately positioned.

A still further object is to provide a roll positioning and supporting means which is extremely simple, ei'licient and economical to manufacture. Y

Other objects and advantages will become apparent as this specific-ation proceeds. Referring to the drawing forming apart thereof and in which a preferred form` of the invention is illustrated: i

partly in section showing a roll of ribbon positioned in the machine;

Fig. 2 is a cross sectional view on a larger scale and is taken on line 2-2 of Fig. 1;

Fig. 3 is a fragmentary `detail longitudinal sectional view taken in the same plane as Fig. 1; and y Fig. 4 is a fragmentary detail sectional view illustrating the method of supporting the horizontal shaft so that it may be angularly displaced.

As previously stated the machine to which the present invention relates is known as a ribbon transfer machine. In accordance e0 with present practice inked ribbons for numerous types of machines are sold in individual spools. Afterthe ribbon has outlived its usefulness both the spool and ribbon are thrown away and a new spool and ribbon 4.5 inserted into the machine. It is contemplated to provide the user with a simple machine on which he may position a master roll of ribbon of any desired width and wind his. own spools of ribbon,

'50 thus making for a very substantial saving.

lash ofthe roll of ribbon 16. Fig. 1 is a view partly in elevation and 1930. serial `ianiees'naa.

`As heretofore stated the invention relates to i that part of the machine which includes the means for [positioning and supporting the master roll ofl ribbon and only that part of the machine has been illustrated.v

Referring again'to the drawngthje reference numeral 5y designates the baise or frame of theinachine. '.Pivot'edat'in said base is a supporting bracket 7. The upper f part of this bracket is apertured and carries thechuck8. '1 f I" The chuckS is'frustro-conical in shape and is providedwith a spiralcutting thread 9 the purpose of which will be hereinafter Eexplained. VThat part of the chuck adjacent the bracket 7 is providedwith a shoulder 10 and the extension 11 from the chuck has its bearing inthe bracket 7. i A knob or handle 12 is secured by 'a pin 13 tothe extension `11. A spring washer 14 is placedbetween the ,bracket'7 and a spider 15, the purpose of the spring washer being to interpose suiiicient friction on thechuck to prevent `overrunning[or back The' 1011er ribbon 1,6 isV providerA with@ core 17 ofyieldi'ng` or semi-.hard material.; This yielding material might be wood,` fibre,

synthetic wood, Yor 'any suitable material which may be easily;penetratedY lby the cutfting thread 9; The core 17 is provided with a frustro-conical shaped 'bore 18which co'- Y operates with the frustro-conical shaped lchuck 8 `to firmly position and support the roll'of ribbon. Ina narrow rollofiribbon the frusto-conical shapedbore would be'substantially coextensive with the axis of' 'said roll; however in awider roll suchas is indicatedin broken lines at 19 in Fig; v1 a' substantial length of thev bore could be of any desired shape in cross section andonlythat ,i part adjacent to and cooperating with the chuck would be frustro-conical. l

The chuck is provided with a socket 2O which frictionally cooperates witha' ball" Q1 on the end of a horizontal shaft 22 `*The ball 2l and the end of the shaft 22'are preferably split as indicated at v23 i so that the" .ball may i be slightly compressed whenbeingenter'ed into the socket andthus insureit being maintained in proper position. Y

The opposite end of the shaft 22 is mountedv so that the entire sh aft may be angularlyv displaced. This endvof the shaft is support- ,ed in an ear 24 struck up .from the base 5 and that ypart of the shaft having its bearing in the ear is rounded as indicated at 25.' The end of the shaft beyond the rounded part is screw threaded at 2G for engagement with a Y nutf27. A spring 28 interposedbetween a cup Washer 29 and the bracket 24 insures the attened face of the washer 27 bearing against the bracket 24 and maintaining the shaft 22 in a horizontal position. lVhen ina cutting thread on said chuck cooperating with said bore, a socketin said chuck, and a shaft having one end cooperating with said socket, the opposite end of said shaft being mounted so that said shaft is capable of an- 70 gular displacement.

In testimony whereof Ikafix m'vsignature.

serting a new A`roll of ribbon in the machine,

particularly a wide roll it is necessary to bend the shaftv upward a Vfew degrees from the horizontal and the structure just described` permits of this. This vconstruction permits off a lowerand more compactmachine.

The operation of positioning anew roll of Aribbon on the machine will non7 bedescribed. Thebracket 7 is'swungon its pivots 6, breaky ing the ball' and socket joint 20-21.v `*The roll of ribbon isthen placed on the shaft 22 and the'bracket 7 swung back tothe position ofFigtvl'. The roll of ribbon'isY moved onto the chuck 8 and'due to the frustro-conical I `Shape of the chuck Sand bore 18 the roll will vvbe moved a substantial distance into the f chuck andthus initially positioned in an accurate manner. The knob l2 is then rotated and the spiralV cutting thread 9will engage Y thecore and the roll will be advanced to its proper working positiontI The shoulder 10 will limit further inward *movement ofthe Y roll.`

rangements of parts may be made without departing'from the spirit of the invention .or thescope'of'the appended claims. f

f 1.'- A -deviceof the character described'rhaving in combination,y a core for a roll of ribbon, said core" being formed of aryielding ma shaped bore'La frusto-conical shaped chuck,

l' a'fcutting threadon said chuck cooperating with said bore, a socket in said chuck, anda shaft having shaped bore, a'frustro-conical shaped chuck,

. a cutting thread on said chuck cooperating with saidbore, a socket in said chuck, a horizontal shaft, and a ball formed at one end of l 60' said shaftgsaid ball land Yshaft being split so as to cooperate with said socket. 3. A device of the character described'hav soY Y Changesfindetails of construction and ar-l I iterial'and-provided withl la irustro-conical ing'in combination, al corefor aroll ofrrib- 'l bon,V said core being vformed cfa 'yielding'material [and provided with a' frustro-conical shaped bore, a vrustro-conicrzal shaped chuck,

ARTHUR R. ZAcHER'r. 

